/* ===== Otarix — Classic Light Theme (Warm, Professional, Easy on Eyes) ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #f9f7f4;
    --bg-warm: #f3efe9;
    --bg-card: #ffffff;
    --bg-dark: #1e2a3a;
    --text: #1a1a2e;
    --text-light: #3a3f5c;
    --text-muted: #5c6380;
    --accent: #1a5276;
    --accent-light: #2980b9;
    --accent-hover: #154360;
    --accent-gradient: linear-gradient(135deg, #1a5276 0%, #2980b9 100%);
    --opus: #6c3483;
    --sonnet: #1a5276;
    --green: #1e8449;
    --gold: #b7950b;
    --orange: #d35400;
    --border: #d9d3cb;
    --border-light: #e8e3dc;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(26,26,46,0.07);
}

html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', Georgia, 'Times New Roman', serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; transition: color 0.2s; }
ul { list-style: none; }

/* ===== HEADER ===== */
.header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(250,248,245,0.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.logo { display: flex; align-items: center; gap: 8px; }
.logo-mark { color: var(--accent); font-size: 16px; }
.logo-name {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.1rem; font-weight: 600;
    color: var(--text); letter-spacing: 2px;
}
.nav-links { display: flex; gap: 28px; }
.nav-links a {
    font-size: 13px; color: var(--text-light); font-weight: 500;
    letter-spacing: 0.3px; padding-bottom: 2px;
    border-bottom: 2px solid transparent; transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent); border-bottom-color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 14px; }
.lang-switch { display: flex; gap: 2px; }
.lang {
    font-size: 11px; font-weight: 600; padding: 4px 10px;
    color: var(--text-muted); border: 1px solid var(--border);
    background: var(--bg); transition: all 0.2s;
}
.lang:hover, .lang.active { color: var(--white); background: var(--accent); border-color: var(--accent); }
.btn-header {
    font-size: 11px; font-weight: 600; padding: 8px 18px;
    background: var(--accent); color: var(--white);
    letter-spacing: 0.5px; text-transform: uppercase; transition: background 0.2s;
}
.btn-header:hover { background: var(--accent-hover); }
.mobile-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span { width: 20px; height: 2px; background: var(--text); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-block; padding: 14px 30px; font-size: 13px; font-weight: 600;
    letter-spacing: 0.5px; text-transform: uppercase; transition: all 0.2s;
}
.btn-accent { background: var(--accent-gradient); color: var(--white); }
.btn-accent:hover { background: var(--accent-hover); filter: brightness(1.1); }
.btn-ghost { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
.btn-ghost:hover { background: var(--accent); color: var(--white); }
.btn-full { width: 100%; text-align: center; }

/* ===== HERO ===== */
.hero {
    position: relative;
    padding: 80px 0 100px;
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-warm) 100%);
    border-bottom: 1px solid var(--border);
}
.hero-fog {
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 30% 60%, rgba(26,82,118,0.03) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(183,149,11,0.02) 0%, transparent 40%);
    pointer-events: none;
}
.hero-content { position: relative; max-width: 680px; }
.hero-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px; font-weight: 500; color: var(--accent-light);
    letter-spacing: 2px; text-transform: uppercase; margin-bottom: 14px;
}
.hero h1 {
    font-size: 2.2rem; font-weight: 700; line-height: 1.25;
    color: var(--text); margin-bottom: 20px; letter-spacing: -0.3px;
    background: linear-gradient(135deg, #1a1a2e 0%, #1a5276 60%, #2980b9 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-desc { font-size: 1rem; color: var(--text-light); line-height: 1.8; margin-bottom: 36px; }
.hero-metrics { display: flex; gap: 36px; margin-bottom: 36px; flex-wrap: wrap; }
.metric { display: flex; flex-direction: column; }
.metric-value {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.6rem; font-weight: 600; color: var(--accent);
}
.metric-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 2px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== SECTIONS ===== */
.section { padding: 70px 0; }
.section-dark { background: var(--bg-warm); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 1.5rem; font-weight: 700; color: var(--text); margin-bottom: 10px; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-sub { font-size: 0.9rem; color: var(--text-muted); max-width: 540px; margin: 0 auto; }

/* ===== TWO TIER ===== */
.two-tier { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.tier-card { padding: 30px; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow); }
.tier-badge {
    display: inline-block; font-size: 10px; font-weight: 700;
    letter-spacing: 1px; padding: 3px 10px; margin-bottom: 12px;
}
.tier-sonnet { color: var(--sonnet); border: 1px solid rgba(26,82,118,0.25); background: rgba(26,82,118,0.05); }
.tier-opus { color: var(--opus); border: 1px solid rgba(108,52,131,0.25); background: rgba(108,52,131,0.05); }
.tier-none { color: var(--text-muted); border: 1px solid var(--border); background: var(--bg-warm); display: inline-block; padding: 3px 10px; font-size: 10px; font-weight: 700; letter-spacing: 0.5px; }
.tier-card h3 { font-size: 1.1rem; color: var(--text); margin-bottom: 10px; }
.tier-desc { font-size: 0.85rem; color: var(--text-light); line-height: 1.7; margin-bottom: 14px; }
.tier-stat { display: flex; gap: 20px; font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--text-muted); }

/* ===== PIPELINE FLOW ===== */
.pipeline-flow { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; justify-content: center; }
.pipe-step { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 10px; min-width: 88px; }
.pipe-icon {
    width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
    background: var(--white); border: 1px solid var(--border); color: var(--accent); font-size: 1rem;
    box-shadow: var(--shadow);
}
.pipe-step span { font-size: 11px; color: var(--text-light); font-weight: 500; text-align: center; }
.pipe-step small { font-family: 'IBM Plex Mono', monospace; font-size: 10px; color: var(--text-muted); }
.pipe-step small.opus-label { color: var(--opus); }
.pipe-arrow { color: var(--text-muted); font-size: 14px; opacity: 0.4; }

/* ===== NUMBERS GRID ===== */
.numbers-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.num-item { text-align: center; padding: 28px 16px; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow); }
.num-value { font-family: 'IBM Plex Mono', monospace; font-size: 1.8rem; font-weight: 600; color: var(--accent); display: block; margin-bottom: 6px; }
.num-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* ===== PRINCIPLES ===== */
.principles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.principle { padding: 26px; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow); }
.principle i { font-size: 1.2rem; color: var(--accent); margin-bottom: 12px; display: block; }
.principle h4 { font-size: 0.9rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.principle p { font-size: 0.82rem; color: var(--text-light); line-height: 1.7; }

/* ===== CTA ===== */
.section-cta {
    padding: 70px 0; text-align: center;
    background: var(--bg-dark); color: var(--white);
}
.section-cta h2 { font-size: 1.3rem; color: #ecf0f1; max-width: 580px; margin: 0 auto 14px; font-weight: 600; font-style: italic; }
.section-cta p { font-size: 0.85rem; color: #95a5a6; margin-bottom: 28px; }
.section-cta .btn-accent { background: #f39c12; color: var(--bg-dark); }
.section-cta .btn-accent:hover { background: #e67e22; }

/* ===== PAGE BANNER ===== */
.page-banner {
    padding: 50px 0; text-align: center;
    background: var(--bg-warm); border-bottom: 1px solid var(--border);
}
.page-banner h1 { font-size: 1.7rem; color: var(--text); margin-bottom: 6px; }
.page-banner p { font-size: 0.9rem; color: var(--text-muted); }

/* ===== AGENT CARDS ===== */
.agents-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.agent-card {
    display: grid; grid-template-columns: 50px 1fr auto; gap: 16px; align-items: start;
    padding: 22px; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow);
}
.agent-num { font-family: 'IBM Plex Mono', monospace; font-size: 1.3rem; font-weight: 600; color: var(--accent); }
.agent-body h3 { font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.agent-body p { font-size: 0.8rem; color: var(--text-light); line-height: 1.6; }
.agent-meta { text-align: right; font-family: 'IBM Plex Mono', monospace; font-size: 11px; }
.agent-meta .model-tag { display: inline-block; padding: 2px 8px; margin-bottom: 4px; font-size: 10px; font-weight: 700; }
.agent-meta .tokens { color: var(--text-muted); display: block; }

/* ===== TECH GRID ===== */
.tech-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.tech-item { padding: 22px; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow); }
.tech-item h4 { font-size: 0.85rem; font-weight: 700; color: var(--accent); margin-bottom: 6px; }
.tech-item p { font-size: 0.8rem; color: var(--text-light); line-height: 1.7; }

/* ===== PERF LIST & DISCLOSURE ===== */
.perf-list { list-style: none; padding: 0; }
.perf-list li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; font-size: 0.88rem; color: var(--text-light); }
.perf-list li i { color: var(--green); font-size: 12px; margin-top: 4px; flex-shrink: 0; }
.disclosure { text-align: center; margin-top: 30px; font-size: 0.82rem; color: var(--text-muted); font-style: italic; }
.disclosure a { color: var(--accent); font-weight: 600; }
.disclosure a:hover { text-decoration: underline; }
.text-center { text-align: center; }

/* ===== COST TABLE ===== */
.cost-table-wrap { overflow-x: auto; }
.cost-table { width: 100%; border-collapse: collapse; font-size: 13px; background: var(--white); }
.cost-table th, .cost-table td { padding: 11px 14px; border-bottom: 1px solid var(--border-light); text-align: left; }
.cost-table th { font-size: 10px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); background: var(--bg-warm); }
.cost-table td { color: var(--text-light); }
.cost-table td strong { color: var(--accent); }
.cost-table .total td { color: var(--text); font-weight: 700; background: var(--bg-warm); border-top: 2px solid var(--accent); }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: start; }
.contact-info h3 { font-size: 1rem; color: var(--text); margin-bottom: 20px; }
.contact-item { margin-bottom: 18px; }
.contact-item h4 { font-size: 11px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 3px; }
.contact-item p { font-size: 0.9rem; color: var(--text); }
.contact-form { padding: 28px; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow); }
.contact-form h3 { font-size: 1rem; color: var(--text); margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 11px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 5px; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 10px 12px; background: var(--bg);
    border: 1px solid var(--border); color: var(--text);
    font-size: 14px; font-family: inherit; transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 90px; }
.form-group select { appearance: auto; }

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-dark); color: #95a5a6; padding: 50px 0 20px;
    font-size: 13px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-brand .logo-name { color: #ecf0f1; }
.footer-brand .logo-mark { color: #f39c12; }
.footer-brand p { color: #7f8c8d; margin-top: 10px; font-size: 12px; line-height: 1.6; }
.footer-col h4 { font-size: 10px; font-weight: 700; color: #bdc3c7; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col a { color: #7f8c8d; font-size: 12px; }
.footer-col a:hover { color: #ecf0f1; }
.footer-bottom { padding-top: 16px; border-top: 1px solid rgba(255,255,255,0.08); text-align: center; color: #7f8c8d; font-size: 11px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .two-tier { grid-template-columns: 1fr; }
    .numbers-grid { grid-template-columns: repeat(2, 1fr); }
    .principles { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .tech-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .nav-links, .nav-right { display: none; }
    .mobile-toggle { display: flex; }
    .hero h1 { font-size: 1.6rem; }
    .hero-metrics { gap: 20px; }
    .pipeline-flow { flex-direction: column; }
    .pipe-arrow { transform: rotate(90deg); }
    .numbers-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .section { padding: 50px 0; }
    .agent-card { grid-template-columns: 1fr; }
    .agent-meta { text-align: left; }
}